5cc GAS/PETROL Evolution Gas Engines ®
EN NOTICE All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, Inc. For up-to-date product literature, visit horizonhobby.com and click on the support tab for this product.
EN • Always keep your fuel in a safe place away from sparks, heat or anything that can ignite. • Always ensure the aircraft is secure and will not move once the engine is started. • Always rebind your transmitter to your receiver(s) after setup and before first flight. • Always ensure the throttle failsafe is set to low throttle in your transmitter. • Always perform a range check prior to flight.
EN Introduction Congratulations on your purchase one of the exciting new engines in the Evolution® small block gas engine series. All of the Evolution brand gas engines are designed from the start to provide you with excellent performance at a fraction of your previous operating costs. We have painstakingly designed and tested each engine to insure a hassle-free experience without giving away anything in expected performance or durability.
EN Included Content ENGINE • Muffler (EVOG15601) • Muffler Screws & Gasket (EVO9191A) • Spark Plug (EVOG10350) • Evolution/Spektrum™ Telemetry RPM adapter cable (EVOA107) • Medium Gas-FKM Fuel Tubing (EVOA104) • In-Line Fuel Filter (EVOA105) • In-tank Felt Filter/Clunk (EVOA106) OPTIONAL ITEMS • Tachometer (HAN156) • Propeller 13 x 6 (EVO13060) for break-in; 14 x 6 (EVO14060) for normal flight • Optical Electronic Ignition Kill Switch (EVOA100) • Evolution Synthetic 2-Cycle Oil, (EVOX1001Q) • Ultra Fuel P
EN Installing the Muffler 1. Put a lock washer on each of the muffler screws. Push the muffler screws through the cylinder head. 2. Place the muffler gasket over the engine mounting screws. 3. Align the muffler gasket with the exhaust opening and the muffler mounting screws. 4. Tighten the muffler screws. The muffler mounting accessory package includes mounting screws (2), lock washers (2), muffler gaskets (2) and L- wrenches (2). Important: Tighten the muffler screws after ve tanks of fuel.
EN Adjusting the Throttle Opening 1. Lower the throttle and center the throttle trim. 4. Move the throttle stick and throttle trim down to confirm the throttle closes. 2. Adjust the length of the throttle linkage until the throttle is open 1mm. 5. If you reversed the throttle channel in your transmitter and you are using a 2.4GHz radio system, you must re-bind your radio system to set the correct failsafe position. 3. Move the throttle stick up to confirm the throttle opens.
EN Connecting the Electronic Ignition The Evolution Electronic Ignition Assembly is designed and engineered specifically for the small block engine series. It is smaller and lighter so it fits into tighter spaces of the airplanes the engines are designed to power. The battery voltage required is between 4.8V (4-cell Ni-MH pack) and 8.4V (2S Li-Po battery) and no voltage regulators are needed with any of these batteries.
EN Fuel This engine requires a mix of 20:1 gas to oil lubricant ratio for break-in and a mix of 32:1 gas/oil ratio for normal operation in order to last a long time. The needle bearing at the bottom end of the conrod depends upon this lube ratio to operate properly. Do not go higher than a 20:1 gas/oil ratio for the first gallon of fuel. After this you may decrease the oil content to a 32:1 gas/oil ratio if desired. Do not go higher than a 32:1 gas/ oil ratio or the warranty on your engine will be voided.
EN Engine Break-in Your new engine needs to be broken-in to ensure a long life of all the components. This engine features a piston ring design, which requires a specific break-in procedure to ensure a tight seal between the piston ring and liner. For this to be accomplished, this process requires repeated heating and cooling cycles, and must be done at a needle setting that is slightly rich of peak to ensure the ring expands and contracts.
EN Telemetry Telemetry is a huge asset to help you tune your engine. The ignition module is even capable of communicating with Spektrum telemetry systems directly so you won’t have to add an additional RPM sensor. You will need to connect the Evolution Ignition Telemetry Adapter (EVOA107) between the RPM port on the ignition unit and the RPM port on your Spektrum telemetry module in order to utilize this feature. Telemetry systems other than Spektrum may require a dedicated RPM sensor.
EN High-Speed Needle Adjustment Because of the small amount of fuel actually needed for this engine, needle adjustments need to be made in small increments. It may take 5 seconds or more before you will notice a running change in your engine after making it. Be patient. Use a tachometer, this is a very important part of properly setting your highspeed needle valve. The procedure below is for ground setting the needles prior to flight.
EN Low-Speed Needle Adjustment If you have properly set the idle need, the low-speed setting should be within 1/16th of a turn from perfect. Remember we are talking about minute amounts of fuel going through the carburetor, any adjustments you now make to the idle needle should be very, very small. Take into consideration the length in service (e.g. break-in time) and the size of propeller you are using. In the beginning, use a smaller propeller early in the break-in process.
EN 15GX Evolution Engines Specifications Disp Bore Stroke Weight Crank K (ISO) Cylinder Propeller 15cc 27.8mm 24.9mm 31.1 0z 5/16-24 Single 14 x 6 @ 10,400 rpm Weight F H BA G C A 43 B 52 C 25 21.4 oz Muffler 6.1 oz Ignition 3.5 oz Total 31.1 oz E = Height* F = Length G = Crankshaft thread size H = Muffler bolt spacing D Dimensions (mm) EVOE15GX Engine Only D 59 E* 95 F 98.1 G 5/16 x 24 H 42 * Height is from engine C/L to top of cylinder head.
EN Exploded View 1 25 2 3 23 4 24 29 5 22 6 8 19 7 18 9 31 27 15 17 30 16 32 14 13 12 11 10 21 20 36 35 26 37 27 44 39 27 42 41 33 27 43 27 34 40 38 15
EN Parts List # Description Part # Description Part 1 Cylinder Screw (6) EVO46408 24 In Tank Fuel Filter/Clunk EVOA106 2 Spark plug EVOG10350 25 Carb Assembly EVOG15801 3 Cylinder Head EVOG15103 26 Ignition Sensor Set EVOG10310A 4 Cylinder Head Gasket (2) EVO91112 27 EVOG15108A 5 Cylinder EVOG15202 28 Carb Mount Gasket Set EVOG61816A 6 Piston Ring EVO91236 29 EVOA102 7 Ringed Piston EVOG15214 Medium Gas-FKM Fuel Tubing 8 Piston Pin & Retainer EVO91213 30 Muffle
EN RANTY IS THE PURCHASER’S SOLE AND EXCLUSIVE REMEDY. Limitation of Liability - HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY, REGARDLESS OF WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT LIABILITY OR ANY OTHER THEORY OF LIABILITY, EVEN IF HORIZON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
EN Warranty and Service Contact Information Country of Purchase United States of America Horizon Hobby Contact Information Horizon Service Center (Repairs and Repair Requests) servicecenter.horizonhobby. com/RequestForm/ Horizon Product Support (Product Technical Assistance) www.quickbase.com/db/ bghj7ey8c?a=GenNewRecord United Kingdom Germany sales@horizonhobby.com 888-959-2305 sales@horizonhobby.co.uk +44 (0) 1279 641 097 Horizon Technischer Service service@horizonhobby.
©2013 Horizon Hobby, Inc. Evolution and the Horizon Hobby logo are registered trademarks of Horizon Hobby, Inc. The Spektrum trademark is used with permission of Bachmann Industries, Inc. Tygon® is a registered trademark of Saint-Gobain Performance Plastics Corporation. All other trademarks, service marks and logos are the property of their respective owners.
